ES2354016T3 - ADMINISTRATION DEVICE - Google Patents
ADMINISTRATION DEVICE Download PDFInfo
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- ES2354016T3 ES2354016T3 ES08759508T ES08759508T ES2354016T3 ES 2354016 T3 ES2354016 T3 ES 2354016T3 ES 08759508 T ES08759508 T ES 08759508T ES 08759508 T ES08759508 T ES 08759508T ES 2354016 T3 ES2354016 T3 ES 2354016T3
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- management device
- fluid
- container
- longitudinal direction
- valve
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
- A61M5/3158—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by axially moving actuator operated by user, e.g. an injection button
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/3155—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe
- A61M5/31553—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe without axial movement of dose setting member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31525—Dosing
- A61M5/31528—Dosing by means of rotational movements, e.g. screw-thread mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31583—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod
- A61M5/31585—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod performed by axially moving actuator, e.g. an injection button
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
- A61M2005/3104—Caps for syringes without needle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3146—Priming, e.g. purging, reducing backlash or clearance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/3156—Mechanically operated dose setting member using volume steps only adjustable in discrete intervals, i.e. individually distinct intervals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31566—Means improving security or handling thereof
- A61M5/31571—Means preventing accidental administration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/3159—Dose expelling manners
- A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
- A61M5/31595—Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Coating Apparatus (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Refuse Collection And Transfer (AREA)
- Seal Device For Vehicle (AREA)
- Liquid Developers In Electrophotography (AREA)
- Valve Device For Special Equipments (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
Dispositivo de administración.Administration device
La presente invención se refiere a un dispositivo de administración y, en particular, a un dispositivo de administración médico.The present invention relates to a administration device and, in particular, to a device of medical administration
Existen numerosos tipos diferentes de dispositivos de administración en el mercado e incluso más dispositivos de administración que se han desarrollado pero que no han llegado al mercado. Los dispositivos presentan diferentes grados de automatización y funciones, dependiendo de los requisitos y necesidades particulares.There are numerous different types of management devices on the market and even more management devices that have been developed but not They have reached the market. The devices have different grades of automation and functions, depending on the requirements and particular needs
Los dispositivos de administración van desde dispensadores para productos cosméticos hasta dispositivos de administración médicos para administrar fármacos esenciales, tales como inyectores, inhaladores y nebulizadores, de los que muchos son bastante avanzados. Las funciones avanzadas conllevan la necesidad de soluciones mecánicas bastante complejas, que requieren un gran número de componentes que deben poder interaccionar entre sí de un modo fiable y seguro, en particular, cuando se trata de fármacos esenciales.Management devices range from dispensers for cosmetic products up to devices administration doctors to administer essential drugs such as injectors, inhalers and nebulizers, of which many are quite advanced. Advanced functions carry the need of quite complex mechanical solutions, which require a large number of components that must be able to interact with each other in a reliable and safe way, in particular, when it comes to drugs essential.
Esto significa a su vez que el coste de los dispositivos se vuelve bastante elevado y que existe además un riesgo de que las funciones avanzadas requieran etapas de manejo complejas con el fin de accionar el dispositivo para administrar una dosis de fármaco. Para determinadas personas que usen este tipo de dispositivo, la complejidad puede ser excesiva, lo que lleva a un manejo inapropiado del dispositivo, lo que a su vez podría llevar a consecuencias graves.This in turn means that the cost of devices becomes quite high and there is also a risk that advanced functions require operating stages complex in order to operate the device to manage a drug dose. For certain people who use this type of device, the complexity may be excessive, leading to a improper handling of the device, which in turn could lead to serious consequences
Para algunos tipos de aplicación, no es necesario que el dispositivo sea tan avanzado o podría suceder que tuviera que mantenerse el coste del dispositivo tan bajo como fuera posible, pero manteniendo una funcionalidad aceptable. Otro aspecto de la dispensación de fluidos es la tendencia a gotear tras haberse administrado una dosis. Esto es bastante común para algunos tipos de dispositivos de administración debido a la "elasticidad" del sistema, tal como la tensión residual en muelles, en tapones de caucho dentro de cartuchos y similares.For some types of application, it is not it is necessary that the device be so advanced or it could happen that had to keep the cost of the device as low as it was possible, but maintaining acceptable functionality. Other aspect of the dispensing of fluids is the tendency to drip after having administered a dose. This is quite common for some types of administration devices due to the "elasticity" of system, such as the residual tension in springs, in plugs rubber inside cartridges and the like.
El documento EP 1 547 694 se refiere a una solución de dispensador centrada en los bajos costes de fabricación y llenado. Comprende una carcasa externa y una pieza de inserción de fluido, moviéndose la pieza de inserción de fluido entre dos posiciones para dispensar una dosis. Esta solución es obviamente muy económica, pero la funcionalidad del manejo no es óptima. Además no tiene ningún medio para prevenir el goteo de fluido tras administrar la dosis. Por tanto, existe la necesidad de un dispositivo de administración económico que comprenda también una buena funcionalidad.EP 1 547 694 refers to a dispenser solution focused on low manufacturing costs and filling. It comprises an external housing and an insert of fluid, moving the fluid insert between two positions to dispense a dose. This solution is obviously very economical, but driving functionality is not optimal. Also no has no means to prevent fluid dripping after administering the dose. Therefore, there is a need for a device economic administration that also includes a good functionality
El objetivo de la presente invención es remediar los inconvenientes de los dispositivos del estado de la técnica descritos anteriormente.The objective of the present invention is to remedy the disadvantages of the prior art devices described above.
El objetivo se soluciona mediante un dispositivo de administración según la reivindicación de patente independiente. Realizaciones preferibles son el objeto de las reivindicaciones de patente dependientes.The goal is solved by a device of administration according to the independent patent claim. Preferable embodiments are the subject of the claims of patent dependent.
Según un aspecto principal de la invención, se
caracteriza por un dispositivo de administración para administrar
cantidades predeterminadas de fluido, dispositivo de administración
para administrar cantidades predeterminadas de fluido que comprende
un cuerpo, un recipiente que se llena con el fluido que va a
administrarse dispuesto dentro de dicho cuerpo, comprendiendo dicho
recipiente una abertura para expulsar dicho fluido y una pared que
puede moverse dentro de dicho recipiente, un vástago (46) de émbolo
roscado dispuesto de manera móvil dentro de dicho cuerpo en la
dirección longitudinal y en contacto con dicha pared móvil, medios
de empuje accionados manualmente que pueden moverse en la dirección
longitudinal que pueden, al accionarse, mover dicho vástago de
émbolo hacia dicha pared móvil, expulsando de ese modo fluido, y
medios para transformar un movimiento generalmente lineal de dichos
medios de empuje en un movimiento de giro de dicho vástago de
émbolo, en el que dichos medios de transformación comprenden un
primer conjunto de superficies dispuestas en dichos medios de empuje
accionados manualmente inclinadas con respecto a la dirección
longitudinal que actúan conjuntamente con un segundo conjunto de
superficies inclinadas dispuestas en un medio de accionamiento
giratorio bloqueado de manera giratoria respecto a dicho vástago
de
émbolo.According to a main aspect of the invention, it is characterized by an administration device for administering predetermined amounts of fluid, administration device for administering predetermined amounts of fluid comprising a body, a container that is filled with the fluid to be administered disposed within of said body, said container comprising an opening for expelling said fluid and a wall that can move within said container, a threaded piston rod (46) disposed movably disposed within said body in the longitudinal direction and in contact with said wall movable, manually actuated thrust means that can move in the longitudinal direction that can, upon actuation, move said plunger rod towards said movable wall, thereby expelling fluid, and means for transforming a generally linear movement of said thrust means into a turning movement of said piston rod, in which and said transformation means comprise a first set of surfaces disposed in said manually actuated thrust means inclined with respect to the longitudinal direction which act in conjunction with a second set of inclined surfaces disposed in a rotatably locked rotary drive means relative to said stem of
plunger.
Según otro aspecto de la invención, dicho segundo conjunto de superficies inclinadas se disponen alrededor de la circunferencia del medio de accionamiento formando un número predeterminado de grados entre sí correspondiente a la cantidad predeterminada de fluido que va a administrarse.According to another aspect of the invention, said second set of inclined surfaces are arranged around the circumference of the drive means forming a number default degrees to each other corresponding to the amount default fluid to be administered.
Según un aspecto adicional de la invención, dicho medio de accionamiento está dotado de una superficie de contacto dentada que actúa conjuntamente con una superficie de contacto dentada fija dispuesta en el cuerpo para impedir un movimiento de retorno de dicho medio de accionamiento.According to a further aspect of the invention, said drive means is provided with a surface of toothed contact that acts together with a surface of fixed toothed contact arranged in the body to prevent a return movement of said drive means.
Según otro aspecto de la invención, el dispositivo comprende además medios que pueden desbloquear dichos medios de empuje entre una posición en la que dichos medios de empuje están bloqueados frente al accionamiento manual en la dirección longitudinal y una posición que permite accionarlos.According to another aspect of the invention, the device further comprises means that can unlock said pushing means between a position in which said means of thrust are locked in front of the manual drive on the longitudinal direction and a position that allows them to be operated.
Según otro aspecto importante, el dispositivo comprende además un medio de administración de dosis unido a la abertura de dicho recipiente en el que una válvula de cierre está dispuesta para abrirse por encima de una determinada presión dentro de dicho recipiente y para cerrarse por debajo de dicha presión.According to another important aspect, the device it further comprises a dose delivery means linked to the opening of said container in which a shut-off valve is ready to open above a certain pressure inside of said container and to close below said pressure.
La presente invención presenta varias ventajas. El uso de medios de empuje que pueden accionarse manualmente de manera lineal es cómodo y fácil de manejar para el usuario a la vez que un movimiento de giro para aplicar presión a un fluido para expulsarlo lo que significa una mejor utilidad de la fuerza manual del usuario, porque, para muchos fluidos, una fuerza manual es demasiado baja como para expulsar un fluido a través de una abertura en el recipiente. Éste es especialmente el caso para fluidos con elevada viscosidad.The present invention has several advantages. The use of pushing means that can be manually operated from Linear way is convenient and easy to handle for the user at the same time that a turning movement to apply pressure to a fluid to eject it which means a better utility of manual force of the user, because, for many fluids, a manual force is too low to expel a fluid through an opening In the container. This is especially the case for fluids with high viscosity
Preferiblemente, la transformación de un movimiento lineal en un movimiento de giro se realiza con superficies inclinadas tales como rampas y superficies de contacto dentadas que son sencillas y económicas en lo que se refiere a su fabricación con pocos componentes.Preferably, the transformation of a linear movement in a turning movement is done with inclined surfaces such as ramps and contact surfaces teeth that are simple and economical in terms of their manufacturing with few components.
Variando la inclinación de las rampas y el paso de las roscas es posible ajustar la cantidad de la dosis administrada y establecer la fuerza requerida para administrar dicha dosis de un modo sencillo y eficaz.Varying the ramp inclination and step of the threads it is possible to adjust the dose amount administered and establish the force required to administer said Dose in a simple and effective way.
Preferiblemente el dispositivo está dotado de una válvula en la abertura de administración para impedir el goteo tras administrar la dosis. Debido a que la válvula se abre y cierra preferiblemente por la presión del fluido administrado, se obtienen una abertura y un cierre fiables de la válvula al principio y al final de la administración de la dosis.Preferably the device is provided with a valve in the administration opening to prevent dripping After administering the dose. Because the valve opens and closes preferably by the pressure of the fluid administered, they are obtained reliable opening and closing of the valve at the beginning and at end of dose administration.
El dispositivo podría estar dotado también de unidades de administración de dosis tales como agujas para inyección, boquillas de aerosol y boquillas nebulizadoras para diferentes tipos de aplicación, recipientes de fármacos y uso.The device could also be equipped with dose delivery units such as needles for injection, spray nozzles and spray nozzles for Different types of application, drug containers and use.
Éstos y otros aspectos y ventajas de la presente invención serán evidentes a partir de siguiente descripción detallada y a partir de los dibujos adjuntos.These and other aspects and advantages of this invention will be apparent from following description Detailed and from the attached drawings.
En la siguiente descripción detallada de la invención se hará referencia a los dibujos adjuntos, de los queIn the following detailed description of the The invention will refer to the attached drawings, of which
la figura 1 es una vista en perspectiva de una realización de la presente invención,Figure 1 is a perspective view of a embodiment of the present invention,
la figura 2 es otra vista en perspectiva de la realización de la figura 1,Figure 2 is another perspective view of the embodiment of figure 1,
la figura 3 es una vista lateral en sección transversal de una realización de la presente invención,Figure 3 is a sectional side view cross section of an embodiment of the present invention,
las figuras 4 a 6 son vistas detalladas en sección transversal de la parte posterior de la realización de la figura 1,Figures 4 to 6 are detailed views in cross section of the back of the embodiment of the Figure 1,
la figura 7 es una vista detallada en sección transversal de la parte frontal de la realización de la figura 1,Figure 7 is a detailed sectional view. cross section of the front part of the embodiment of the figure one,
la figura 8 es una vista en sección transversal de un componente comprendido en la realización de la figura 1,Figure 8 is a cross-sectional view. of a component comprised in the embodiment of Figure 1,
la figura 9 es una vista en perspectiva de otro componente de la realización,Figure 9 is a perspective view of another component of the embodiment,
la figura 10 es una vista en perspectiva de un componente adicional,Figure 10 is a perspective view of a additional component,
las figuras 11a y 11b son vistas en perspectiva de otro componente de la realización.Figures 11a and 11b are perspective views. of another component of the embodiment.
El dispositivo según la presente invención se muestra en los dibujos. El dispositivo comprende un cuerpo 10 alargado que tiene un extremo frontal y un extremo posterior, figuras 1 y 2. El extremo frontal está dotado, en el estado de almacenamiento y previo a la utilización, de un tapón 12 extraíble. El extremo posterior está dotado de un botón 14 sobresaliente, en adelante denominado botón de dedo pulgar, cuya función se describirá a continuación.The device according to the present invention is Show in the drawings. The device comprises a body 10 elongated that has a front end and a back end, Figures 1 and 2. The front end is provided, in the state of storage and prior to use, of a removable cap 12. The rear end is provided with an outstanding button 14, in forward called thumb button, whose function will be described then.
Tal como se observa en la figura 3 un recipiente 16; por ejemplo, un cartucho, una jeringuilla, un recipiente para crema, un recipiente para gas; que comprende fluido que va a administrarse se encuentra dentro del cuerpo. Una pared 18 móvil está dispuesta dentro del recipiente. En el extremo frontal del recipiente está unida una pieza 20 de extremo, por ejemplo, mediante una parte 22 cilíndrica que tiene ranuras y/o protuberancias 24 dirigidas hacia fuera que se acoplan con ranuras y/o protuberancias 26 dirigidas hacia dentro de una parte 28 cilíndrica del recipiente, figura 7.As shown in figure 3 a container 16; for example, a cartridge, a syringe, a container for cream, a gas container; which comprises fluid that is going to administered is found inside the body. A mobile wall 18 It is arranged inside the container. At the front end of the container an end piece 20 is attached, for example, by a cylindrical part 22 having grooves and / or protrusions 24 directed outwardly that engage with grooves and / or protuberances 26 directed into a cylindrical part 28 of the container, figure 7.
La pieza de extremo está dotada de una abertura 30 central, a través de la que puede expulsarse el fluido. Una válvula 32 se dispone en las proximidades de la abertura central, dotada de una parte frontal que tiene una forma que se corresponde con la abertura central. Un medio 34 elástico de válvula, por ejemplo, un muelle, dispuesto entre la válvula y el recipiente empuja a la válvula hacia la abertura central. Un paso 36 se dispone entre el interior del recipiente y un espacio 38 entre la válvula y la pieza de extremo, delimitado por una superficie 40 anular de la válvula en el lado opuesto del medio elástico de válvula.The end piece is provided with an opening 30 central, through which the fluid can be expelled. A valve 32 is arranged in the vicinity of the central opening, endowed with a front part that has a corresponding shape With the central opening. An elastic valve means 34, for example, a spring, disposed between the valve and the container push the valve towards the central opening. A step 36 is arranged between the inside of the container and a space 38 between the valve and the end piece, delimited by an annular surface 40 of the valve on the opposite side of the elastic valve means.
El cuerpo 10 está dotado adicionalmente de un paso 42 central con roscas 44 y rampas 52, figura 8, a través de las que se dispone un vástago 4 6 de émbolo roscado. Una parte generalmente cilíndrica, denominada en adelante en el presente documento accionador 48, figura 10, se dispone adyacente al paso roscado. El vástago de émbolo se extiende a través del accionador de una manera bloqueada de manera giratoria, pero deslizante, con la ayuda de un diseño de ranura. La superficie de extremo frontal del accionador está dotada de una superficie de contacto dentada que tiene rampas 50 inclinadas que actúan conjuntamente con una superficie que rodea el paso central con rampas 52 correspondientes del cuerpo 10, figura 8, cuya función se describirá a continuación. Un extremo 54 posterior del accionador tiene un diámetro algo mayor y está dotado de varias protuberancias 56 dirigidas hacia fuera en su circunferencia, en la que las superficies 58 dirigidas hacia atrás están algo inclinadas. En la realización mostrada existen tres protuberancias dispuestas a 120º entre sí alrededor de la circunferencia.The body 10 is additionally provided with a central step 42 with threads 44 and ramps 52, figure 8, through the that a threaded piston rod 4 6 is arranged. A part generally cylindrical, hereinafter referred to as actuator document 48, figure 10, is arranged adjacent to the passage screwed. The piston rod extends through the actuator of a way rotatably locked, but sliding, with the Help of a slot design. The front end surface of the actuator is provided with a toothed contact surface that it has 50 inclined ramps that act in conjunction with a surface surrounding the central passage with corresponding ramps 52 of body 10, figure 8, whose function will be described below. A rear end 54 of the actuator has a somewhat larger diameter and is provided with several protuberances 56 directed outwardly in its circumference, in which the surfaces 58 directed towards Behind are somewhat inclined. In the embodiment shown there are three protrusions arranged at 120º from each other around the circumference.
El accionador 48 actúa conjuntamente con una parte generalmente cilíndrica adicional, denominada en adelante en el presente documento manguito 60 articulado, figuras 11a y b. El extremo frontal del manguito articulado está dotado de un reborde 62 circunferencial que tiene varios cortes 64, que se acoplan con resaltes 66 longitudinales en la superficie interna del cuerpo 10, figura 8. En las paredes internas del manguito articulado se disponen resaltes 68 inclinados, que actúan conjuntamente con las superficies 58 inclinadas de las protuberancias 56 del accionador 48 de una manera que se explicará.The actuator 48 acts in conjunction with a generally additional cylindrical part, hereinafter referred to as this articulated sleeve 60 document, figures 11a and b. He front end of the articulated sleeve is provided with a flange 62 circumferential that has several cuts 64, which are coupled with longitudinal projections 66 on the inner surface of the body 10, Figure 8. On the internal walls of the articulated sleeve, they have inclined 68 protrusions, which act in conjunction with the inclined surfaces 58 of the protrusions 56 of the actuator 48 in a way that will be explained.
La superficie 70 de extremo posterior del manguito 60 articulado está dotada de superficies 72 inclinadas, superficies que actúan conjuntamente con superficies 76 correspondientes de una parte 78 tubular del botón 14 de dedo pulgar, figura 9. El botón de dedo pulgar esté dotado de una parte 80 cilíndrica frontal dentro del cuerpo y se impide que se mueva hacia atrás mediante un reborde 82 circunferencial en contacto con un reborde 84 dirigido hacia dentro del cuerpo 10. La parte cilíndrica frontal del botón de dedo pulgar está dotada adicionalmente de muescas 86 longitudinales dotadas de un paso y una anchura correspondientes a los resaltes 66 longitudinales del cuerpo 10. En una primera realización, la superficie de extremo frontal del botón de dedo pulgar, mostrada en la figura 9, está dotada de varias superficies 88 inclinadas y rebordes 90 de tope. En una segunda realización, la superficie perimetral del botón de dedo pulgar está dotada adicionalmente de un botón de liberación, tal como por ejemplo un saliente, no mostrado, que puede interaccionar con un entrante u orificio pasante, no mostrado, en la superficie perimetral del cuerpo 10 en su extremo posterior. Además, un medio 92 elástico, por ejemplo un muelle, se dispone entre una superficie interna del botón de dedo pulgar y el extremo posterior del accionador.The rear end surface 70 of the articulated sleeve 60 is provided with inclined surfaces 72, surfaces acting together with surfaces 76 corresponding to a tubular part 78 of the finger button 14 thumb, figure 9. The thumb button is equipped with a part 80 front cylindrical inside the body and prevents it from moving backwards by means of a circumferential flange 82 in contact with a flange 84 directed into the body 10. The part Front cylindrical thumb button is equipped in addition to longitudinal notches 86 provided with a step and a width corresponding to longitudinal projections 66 of the body 10. In a first embodiment, the front end surface of the thumb button, shown in figure 9, is provided with several inclined surfaces 88 and stop flanges 90. In a second embodiment, the perimeter surface of the thumb button is additionally provided with a release button, such as by example a projection, not shown, that can interact with a incoming or through hole, not shown, on the surface perimeter of the body 10 at its rear end. In addition, a medium 92 elastic, for example a spring, is disposed between a surface inside of the thumb button and the back end of the actuator
El dispositivo está pensado para funcionar de la manera siguiente. Cuando se entrega el dispositivo al usuario, el tapón 12 de extremo está puesto y se mantiene en su sitio mediante un reborde 94 anular en la superficie externa del recipiente que actúa conjuntamente con una muesca 96 anular en la superficie interna del tapón. El tapón se retira tirando de él respecto al dispositivo. El botón de dedo pulgar está en la posición bloqueada, figura 4. La siguiente etapa es permitir la administración de fluido. En la primera realización, el botón 14 de dedo pulgar se desbloquea girándose hasta que los rebordes 90 de tope en la superficie de extremo frontal entran en contacto con los resaltes 66 del cuerpo. En la segunda realización, el botón 14 de dedo pulgar se desbloquea pulsando el botón de liberación, mediante lo cual el botón de dedo pulgar se expulsa hacia su extremo posterior y se ve forzado a girar hasta que los rebordes 90 de tope en la superficie de extremo frontal entran en contacto con los resaltes 66 del cuerpo debido a la presión ejercida por el muelle 92. Las superficies 72 inclinadas del manguito 60 articulado y las superficies 76 de acoplamiento del botón 14 de dedo pulgar sirven para el fin de mantener el botón de dedo pulgar en las posiciones "cerrada" y "abierta" así como de proporcionar retroalimentación táctil al usuario. En la posición abierta, los resaltes 66 están alineados con las muescas 86 del botón de dedo pulgar, permitiendo de ese modo empujar el botón de dedo pulgar hacia el cuerpo, es decir, permitiendo usar el dispositivo para la administración de fluido, figura 5.The device is designed to work from the next way. When the device is delivered to the user, the end plug 12 is put and held in place by an annular flange 94 on the outer surface of the container that acts in conjunction with an annular notch 96 on the surface internal cap. The cap is removed by pulling on it device. The thumb button is in the locked position, Figure 4. The next step is to allow the administration of fluid. In the first embodiment, the thumb button 14 is unlocks by turning until the stop flanges 90 in the front end surface come into contact with projections 66 of the body. In the second embodiment, the thumb button 14 is unlocks by pressing the release button, whereby the thumb button is ejected towards its rear end and looks forced to rotate until the flanges 90 stop on the surface front end come into contact with the projections 66 of the body due to the pressure exerted by the spring 92. The surfaces 72 inclined of the articulated sleeve 60 and the surfaces 76 of Thumb 14 button coupling serve for the purpose of keep the thumb button in the "closed" positions and "open" as well as providing tactile feedback to Username. In the open position, the projections 66 are aligned with the notches 86 of the thumb button, thereby allowing push the thumb button towards the body, that is, allowing the device to be used for fluid administration, figure 5.
Pulsar el botón de dedo pulgar provoca que el manguito 60 articulado se mueva hacia adelante, figura 6. Esto a su vez provocará que el accionador 48 gire debido a que los resaltes 68 inclinados del manguito articulado actúan sobre las superficies 58 de extremo de las protuberancias 56 del accionador. El giro del accionador se transmite al vástago 46 de émbolo debido a que ambos están bloqueados en rotación, y debido a las roscas del vástago de émbolo que actúan conjuntamente con las roscas del cuerpo; el vástago de émbolo se moverá hacia delante y así presionará la pared 18 móvil hacia el extremo frontal del dispositivo.Pressing the thumb button causes the articulated sleeve 60 move forward, figure 6. This to your once it will cause the actuator 48 to rotate due to the fact that you highlight them 68 inclined of the articulated sleeve act on the surfaces 58 of end of the protrusions 56 of the actuator. The turn of the actuator is transmitted to the piston rod 46 because both they are locked in rotation, and due to the threads of the stem of piston that act together with the threads of the body; he piston rod will move forward and thus press the wall 18 mobile towards the front end of the device.
La presión desde la pared móvil presionará el fluido a través del paso 36 en la parte de extremo del recipiente y entonces actuará sobre la superficie 40 anular de la válvula 32. Esta presión provocará que la válvula se abra contra la fuerza del medio 34 elástico de válvula, expulsando de ese modo el fluido a través de la abertura 30 central. En cuanto disminuye la presión del fluido por debajo de la fuerza del medio elástico de válvula, la válvula se cerrará, impidiendo de ese modo cualquier goteo del fluido.The pressure from the moving wall will press the fluid through step 36 in the end portion of the container and then it will act on the annular surface 40 of the valve 32. This pressure will cause the valve to open against the force of the elastic valve means 34, thereby expelling the fluid to through the central opening 30. As soon as the pressure of the fluid below the force of the elastic valve means, the valve will close, thereby preventing any dripping of the fluid.
Cuando el accionador ha girado aproximadamente 120º, la superficie de contacto dentada entre el accionador y el cuerpo es tal que las rampas 50, 52 entran en la siguiente posición indexada y se completa la dosis. Las rampas que proporcionan las posiciones indexadas impiden cualquier retroceso del accionador. Cuando el usuario libera la presión del botón de dedo pulgar, la fuerza desde el medio 92 elástico obligará al manguito articulado a volver a su posición original en la dirección longitudinal. Con el fin de que los resaltes 68 inclinados del manguito articulado puedan actuar sobre las protuberancias 56 del accionador para una administración posterior, el manguito articulado ha de girarse ligeramente, lo que se realiza con las rampas 72 en el extremo posterior del manguito articulado actuando con las rampas 76 de acoplamiento en el botón de dedo pulgar. A ese respecto, los cortes 64 en el manguito articulado están hechos algo más anchos que los resaltes 66 del cuerpo para permitir este leve giro.When the actuator has rotated approximately 120º, the toothed contact surface between the actuator and the body is such that ramps 50, 52 enter the next position indexed and the dose is completed. The ramps that provide the Indexed positions prevent any actuator recoil. When the user releases the pressure of the thumb button, the force from the middle 92 elastic will force the articulated sleeve to return to its original position in the longitudinal direction. With the so that the inclined shoulder 68 of the articulated sleeve can act on the protrusions 56 of the actuator for a subsequent administration, the articulated sleeve has to be turned slightly, which is done with ramps 72 at the end rear of the articulated sleeve acting with ramps 76 of coupling on the thumb button. In that regard, the cuts 64 in the articulated sleeve are made somewhat wider than the projections 66 of the body to allow this slight rotation.
Preferiblemente el dispositivo se ceba antes de su primer uso. Esto se realiza sujetando el dispositivo con el extremo frontal apuntando hacia arriba y pulsando el botón de dedo pulgar varias veces.Preferably the device is primed before Your first use. This is done by holding the device with the front end pointing up and pressing the finger button Thumb several times.
Ha de entenderse que el dispositivo puede modificarse de muchos modos. Aunque se haya descrito un giro de 120º, pueden seleccionarse otros pasos, dependiendo de, por ejemplo, la cantidad de dosis. A ese respecto, puede modificarse el número de grados entre sí del segundo conjunto de superficies inclinadas dispuestas alrededor de la circunferencia del medio de accionamiento y puede modificarse también el paso de las roscas para proporcionar diferentes longitudes por las que se mueve el vástago de émbolo, proporcionando así diferentes cantidades de dosis.It is to be understood that the device can Modify in many ways. Although a turn of 120º, other steps can be selected, depending on, for example, The amount of dose. In that regard, the number of degrees from each other of the second set of inclined surfaces arranged around the circumference of the drive means and the pitch of the threads can also be modified to provide different lengths by which the piston rod moves, thus providing different amounts of doses.
Ha de entenderse además que el dispositivo puede estar dotado de diferentes medios de administración tales como agujas para inyección unidas al extremo frontal del recipiente para permitir la inyección de fluido, boquillas de pulverización cuando el dispositivo va a usarse como inhalador o nebulizador.It should also be understood that the device can be provided with different means of administration such as injection needles attached to the front end of the container to allow fluid injection, spray nozzles when The device will be used as an inhaler or nebulizer.
A este respecto, ha de entenderse que la realización descrita anteriormente y mostrada en los dibujos ha de considerarse sólo como ejemplo no limitativo de la invención y que puede modificarse de muchos modos dentro del alcance de protección de las reivindicaciones de patente.In this regard, it should be understood that the embodiment described above and shown in the drawings must considered only as a non-limiting example of the invention and that can be modified in many ways within the scope of protection of the patent claims.
Claims (10)
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- un cuerpo (10),a body (10),
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- un recipiente (16) que se llena con el fluido que va a administrarse dispuesto dentro de dicho cuerpo, comprendiendo dicho recipiente una abertura para expulsar dicho fluido y una pared (18) que puede moverse dentro de dicho recipiente,a container (16) that is filled with the fluid to be administered disposed within said body, said container comprising a opening to expel said fluid and a wall (18) that can move inside said container,
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- un vástago (46) de émbolo roscado dispuesto de manera móvil dentro de dicho cuerpo en la dirección longitudinal y en contacto con dicha pared (18) móvil,a threaded piston rod (46) disposed mobilely within said body in the longitudinal direction and in contact with said mobile wall (18),
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- medios (14, 60) de empuje accionados manualmente que pueden moverse en la dirección longitudinal que pueden, al accionarse, mover dicho vástago (46) de émbolo hacia dicha pared móvil, expulsando de ese modo fluido, ymedia (14, 60) manually operated push thrust that can move in the longitudinal direction that can, when operated, move said piston rod (46) towards said movable wall, expelling from that fluid mode, and
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- medios para transformar un movimiento generalmente lineal de dichos medios de empuje en un movimiento de giro de dicho vástago de émbolo, en el que dichos medios de transformación comprenden un primer conjunto de superficies (68) dispuestas en dichos medios de empuje accionados manualmente inclinadas con respecto a la dirección longitudinal que actúan conjuntamente con un segundo conjunto de superficies (58) inclinadas dispuestas en un medio (48) de accionamiento giratorio bloqueado de manera giratoria respecto a dicho vástago de émbolo.media to transform a generally linear movement of said means of pushing in a rotational movement of said piston rod, in the that said transformation means comprise a first set of surfaces (68) arranged in said driven thrust means manually inclined with respect to the longitudinal direction that they act together with a second set of surfaces (58) inclined arranged in a rotating drive means (48) rotatably locked with respect to said rod of plunger.
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- 2008-05-09 ES ES08759508T patent/ES2354016T3/en active Active
- 2008-05-09 EP EP08759508A patent/EP2162230B1/en active Active
- 2008-05-09 US US12/599,766 patent/US9878103B2/en active Active
- 2008-05-09 DE DE602008003337T patent/DE602008003337D1/en active Active
- 2008-05-09 DK DK08759508.8T patent/DK2162230T3/en active
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2016
- 2016-03-15 US US15/070,870 patent/US10675413B2/en active Active
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2020
- 2020-05-14 US US15/931,751 patent/US11547807B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20200268978A1 (en) | 2020-08-27 |
| AU2008250037A1 (en) | 2008-11-20 |
| US9878103B2 (en) | 2018-01-30 |
| US20160193417A1 (en) | 2016-07-07 |
| CN101715371B (en) | 2012-09-05 |
| ATE486660T1 (en) | 2010-11-15 |
| AU2008250037B2 (en) | 2010-11-04 |
| CN101715371A (en) | 2010-05-26 |
| EP2162230A1 (en) | 2010-03-17 |
| US20100305512A1 (en) | 2010-12-02 |
| US10675413B2 (en) | 2020-06-09 |
| US11547807B2 (en) | 2023-01-10 |
| DE602008003337D1 (en) | 2010-12-16 |
| EP2162230B1 (en) | 2010-11-03 |
| DK2162230T3 (en) | 2011-02-07 |
| WO2008138908A1 (en) | 2008-11-20 |
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